JPS649222B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a pulp unpacking device that improves the unpacking efficiency by cutting and removing wires binding the pulp without manual intervention. It is.

"Prior Art" Generally, in paper manufacturing plants that do not have pulp manufacturing equipment, sheet-like pulp transported from the pulp manufacturing plant is disintegrated by a pulper and then used as a raw material.

The sheet-like pulp is transported and stored as a so-called pulp bale 1 wrapped in wrapping paper 1a and 1b from above and below and tied vertically in a criss-cross pattern with wires 1c, as shown in FIG. Therefore, when this pulp is fed into a pulper and disintegrated, it is necessary to manually remove the wire 1c of the pulp bale 1 and the wrapping papers 1a and 1b. ing.

By the way, in recent years, the scale of paper manufacturing plants has increased significantly, and in order to efficiently supply large amounts of pulp raw materials, it is necessary to automatically perform the pulp unpacking process described above without manual intervention. There is a request to do so. In order to meet this demand, methods and devices for unpacking pulp have been proposed in Japanese Patent Application No. 57-9752 and the like.

That is, in this unpacking device, the centering device 3 aligns the pulp bale 1 being conveyed by the roller conveyor 2 in the width direction of the roller conveyor 2, and the wire cutter 4 cuts the wire 1c. The cut wire 1c is pulled out and removed by a wire removing machine 5, and the upper wrapping paper 1a is removed by a first suction machine 6A that is movable in a direction intersecting the roller conveyor 2. Then, the pulp bale 1 is inverted by a reversing machine 7 provided so as to surround the roller conveyor 2, and the lower wrapping paper 1b is turned upward.
Further, a second suction device 6B provided downstream of the reversing device 7 is configured to suction and remove the lower wrapping paper 1b.

However, since the wire binding the pulp bale 1 has rigidity, the wire cannot be pulled out in a straight line by a simple pulling operation using the wire removal machine, and the wire may be bent into various shapes. There was a problem in that the wire was pulled out in a loose state, which required time and effort to clean up afterwards, and the structure of the wire removing machine became complicated because it had to support forces in various directions that were applied to the wire removing machine during pulling out. .

"Problems to be Solved by the Invention" The present invention was made in view of the above circumstances, and it not only improves the pulp unpacking device to streamline the work of supplying raw materials to the pulper, but also improves the unpacking device. The purpose of this invention is to facilitate the wire pulling in the device and to simplify the structure of the wire pulling machine.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides a pulp mill equipped with a wire removing machine that grabs the wire cut by the wire cutting machine and moves horizontally toward the outside of the roller conveyor. In the baling machine, the wire removing machine is connected to a guide frame which is movable in a direction parallel to the conveying direction of the roller conveyor and whose movement in the vertical direction is regulated, and a guide frame that is movable in the same direction as the guide frame and corresponding to the guide frame while holding the wire. a pull-out head that moves both in the direction and in the orthogonal direction;
The guide frame is provided with a guide roll for winding a wire between the pulp bale and the drawing head and changing the direction of the wire substantially horizontally.

"Embodiment" An embodiment of the present invention will be described below with reference to FIGS. 1 to 10.

First, the overall layout of the pulp unpacking device will be explained with reference to FIG. 8, a wire cutting machine 4A installed on one side of the wire cutting machine 4A for cutting the wire;
A wire removing machine 5A is provided at a position opposite to the wire removing machine 5A for pulling out the wire, and a reversing machine 7A is provided downstream of the wire cutting machine 4A and the wire removing machine 5A for vertically rotating the pulp 1 while holding it therebetween. It is installed in a position facing machine 7A, and
The basic structure includes a wrapping paper removing machine 9 that rotates above the inverted pulp and sucks the wrapping paper.

The pulp turner 8 is provided by cutting out a part of the roller conveyor 2, as shown in FIGS. It has a configuration in which a cross-shaped rotating frame 11 is provided to support it from below.

The wire cutting machine 4A has a roller conveyor 2.
A cutting head 14 is provided on a movable frame 13 that moves along rails 12, 12 arranged parallel to the traveling direction of the roller conveyor 2 (hereinafter referred to as the X-axis direction). It is designed to move horizontally in the Y-axis direction (hereinafter referred to as the Y-axis direction). The cutting head 14 includes a contact plate 16 attached to the tips of a pair of support shafts 15 that can move forward and backward in the Y-axis direction, magnetic sensors 17, 17 attached to the contact plate 16, and a contact plate 16 provided on the contact plate 16. The cutter 18 moves forward and backward in the Y-axis direction through the opening 16a.
8 performs cutting by crossing a pair of blades. Further, the contact plate 16 is connected to the support shaft 15,
15 at both ends in the width direction, and supported vertically by support pins 19, 19. By adopting such a support method, it is possible to adjust the posture of the pulp or the unevenness of the side surface of the pulp. The angle is changed accordingly. In addition,
In the figure, numeral 20 is a fluid pressure cylinder that operates the cutter 18, numeral 21 is a motor that drives the moving frame 13 in the X-axis direction, and numeral 22 is the cutting head 1.
4 in the Y-axis direction.

The wire removing machine 5A is composed of a guide frame 23 and a main frame 24, as shown in FIGS. 5 to 7.

The guide frame 23 includes guide rails 25,
25, the fixed side guide rolls 26A, 26A are supported movably from above and below in the X-axis direction and their movement in the vertical direction is regulated, and the fixed side guide rolls 26A, 26A guide the wires that bind the pulp, and the movable side that is movable up and down. It has guide rolls 26B, 26B, and a guide plate 27 having a sliding surface for guiding and centering the wire at the widthwise central part of these guide rolls 26A, 26B, and further has a guide plate 27 for guiding and centering the wire, and also for movement in the X-axis direction. The brake device 28 has a brake device 28 for regulating the brake speed, and a brake release mechanism 29 for operating the brake device 28.

The brake device 28 is configured such that a brake pad 31 is brought into contact with a plate member 30 provided along the X-axis direction.
is attached to the tip of a brake shaft 32 that is vertically movable. Further, the lower end of the brake shaft 32 is connected to a link 3 that forms part of the brake release mechanism 29.
3, and by bringing an actuating rod (described later) into contact with a swing arm 34 forming a part of this link 33, the brake shaft 32 is lowered and the brake is released.

The main frame 24 is mounted on rails 35, 35 provided along the Y-axis direction,
Furthermore, rails 36, 36 are mounted on the main frame 24 along the X-axis direction. and,
A moving frame 38 that supports the extraction head 37 is mounted so as to be movable along the rails 36, 36.

The drawing head 37 consists of a clamp 39 for gripping the wire and a contact plate 16 configured similarly to the contact plate 16 of the wire cutting machine 4A. It is supported by the tips of support shafts 15, 15 so as to be movable forward and backward in the Y-axis direction, and also supported by support pins 19, 19 so as to be vertically rotatable.

Further, the clamp 39 is provided in an inclined state as shown in FIG. 7 in order to prevent the wire from getting caught when the wire is pulled out. Furthermore, the main frame 24 (or moving frame 38)
An operating rod 40 is protruded from the front of the
This actuating rod 40 moves the main frame 24
By moving forward in the axial direction (movement toward the roller conveyor 2), the swing arm 34 of the guide frame 23 is pressed, and the brake of the guide frame 23 is released. Further, the actuating rod 40 engages with a portion of the guide frame 23 to connect the guide frame 23 and the main frame 24, allowing them to move together in the X-axis direction.

In addition, in FIGS. 5 to 7, the reference numeral 41
42 is a motor that moves the main frame 24 in the Y-axis direction; 42 is a motor that moves the moving frame 38 in the X-axis direction; 43 is a motor that moves the extraction head forward and backward in the Y-axis direction; 44 is a clamp 38
This is a drive device that operates the

On the other hand, the reversing machine 7A installed downstream of the wire cutting machine 4A and the wire pulling machine 5A has two upper and lower forks 49 mounted on a rotating frame 48 that is vertically rotated by a motor 46 about a shaft 47 ( Note that the lower fork is not shown),
This fork 49 rotates while holding the pulp from above and below. Further, the fork 49 is adapted to be retracted above the wrapping paper removing machine 9.

Further, the wrapping paper removing machine 9 includes a plurality of adsorbers 5.
0 is mounted on a rotating frame 51, and by rotating these adsorbers 50 to the position shown by the solid line or the position shown by the chain line in FIG. 1, the wrapping paper covering the upper part of the pulp is adsorbed. can be removed.

Next, the operation of the unpacking device configured as above will be explained.

(i) The pulp bale 1 is conveyed in the X-axis direction by the roller conveyor 2, and is positioned at the center in the width direction of the roller conveyor 2 by a centering device (not shown).

(ii) Stop the roller conveyor 2 and position the pulp bale 1 above the pulp turner 8.

(iii) When the contact plate 16 of the wire cutting machine 4A is brought into contact with the side surface of the pulp bale 1 and the cutting head 14 is moved in the X-axis direction, the contact plate 16
moves along the irregularities on the side surface of the pulp bale 16 while shaking its head, and when the magnetic sensor 17 detects the metal wire 1c, the cutting head 1 moves at a certain timing from the time of this detection.
4 is stopped, and the cutter 18 is placed in a position facing the wire 1c.

(iv) Move the cutter 18 in the Y-axis direction and cut the wire 1c as shown in FIG.

(v) Repeat steps (iii) to (iv) above to
Cut the main wire 1c.

(vi) When the main frame 24 is advanced to engage the actuating rod 40 with the guide frame 23 and the swing arm 34 is rotated to release the brake, the guide frame 23 and main frame 24 move together in the X-axis direction. It becomes possible to do so.

(vii) Move the drawing head 37 forward to bring the contact plate 16 into contact with the side surface of the pulp bale 1, and move the guide frame 23 and the moving frame 38 in the X-axis direction to position the cutting head 14. Similarly, pull out head 3.
The clamp 39 of No. 7 is made to face the wire 1c.

(viii) As shown in Figure 9, the moving side guide roll 2
6B is lowered, the wire 1c is gripped by the clamp 39, and the clamp 39 is moved back in the Y-axis direction.

(ix) The wire 1c pulled by the clamp 39 is
As shown in FIG. 10, both guide rolls 26A, 2 on the fixed side and moving side are guided by the guide plate 27.
Enter between 6B and squeeze Y while being squeezed by both rolls.
It is pulled axially outward. At this time, wire 1
The vertical force generated by the tension c is applied to the guide roll 26B and the guide frame 2.
3, and is supported by the upper rail 25 through the clamp 39. Therefore, there is almost no force acting on the clamp 39 other than in the Y-axis direction, and the wire 1c cannot be pulled out by simply pulling it in the horizontal direction. can. Further, the main frame 24 to which the clamp 39 is attached will not be lifted off the rail 35 due to vertical force being applied thereto.

(x) After repeating the operations (vi) to (ix) above to pull out the two wires 1c, operate the pulp turner 8 to horizontally rotate the pulp bale 1 through 90 degrees, and then perform the steps (iii) above. Return to , cut the wire 1c on the other side, and pull it out.

() The roller conveyor 2 is operated to stop the pulp bale 1 at a position between the reversing machine 7A and the wrapping paper removing machine 9.

() The wrapping paper removing machine 9 is rotated to the position shown by the chain line in FIG. 1 to remove the upper wrapping paper 1a, and then retracted to the position shown by the solid line.

() The pulp bale 1a is held between the forks 49 of the reversing machine 7A and vertically rotated through 180 degrees.

() Remove the wrapping paper 1b in the same manner as in () above.

() When the roller conveyor 2 is operated to send the pulp bale 12 further downstream, the unpacking operation is completed.

Note that the configuration of the wire cutting machine, wire removing machine, reversing machine, or wrapping paper removing machine that forms part of the unpacking device is not limited to the one embodiment described above. For example, a reversing machine may be retracted from a position above the roller conveyor as long as it does not interfere with the operation of the wrapping paper removal machine, and a wrapping paper removal machine may be retracted from a position above the roller conveyor and removed from the wrapping paper removal machine. Any material that can absorb from above is sufficient.

"Effects of the Invention" As is clear from the above description, the present invention provides a pulp unpacking machine equipped with a wire removing machine that grabs the wire cut by the wire cutting machine and moves horizontally toward the outside of the roller conveyor. , a guide frame that allows the wire removing machine to move freely in parallel to the conveying direction of the roller conveyor and is restricted from moving in the vertical direction, and a direction in which the wire is held in the same direction as the guide frame and in a direction perpendicular to the direction; and a drawing head that moves in both directions, and the guide frame is provided with a guide roll that winds the wire between the pulp bale and the drawing head and changes the drawing direction of the wire to approximately horizontal. This makes it possible to reliably pull out the pulp bale while squeezing the wires that bind it, and also simplifies the mechanism that supports the pulling head by applying force only in the horizontal direction to the pulling head. This has the effect of making it possible to achieve the following.

[Brief explanation of the drawing]

Figures 1 to 10 show an embodiment of the present invention. Figure 1 is a plan view of the entire device, Figure 2 is a plan view of the wire removing machine, and Figure 3 is a diagram showing the line shown in Figure 2. 4 is a view taken along line 2, FIG. 5 is a plan view of the wire cutting machine, FIG. 6 is a view taken along line 5, and FIG. 7 is a view taken along line 2. Figure 5-
8 to 10 are respectively explanatory diagrams of the operation of the wire removing machine, FIG. 11 is a perspective view showing a conventional example of a pulp bale, and FIG. 12 is a conventional example of a pulp unpacking device. FIG. 3 is a plan view showing an example. 1...Pulp bale, 1a, 1b...Wrapping paper,
1c...Wire, 2...Roller conveyor, 4A
...Wire cutting machine, 5A ...Wire removing machine, 7A
... Reversing machine, 8 ... Pulp turner, 9 ... Wrapping paper removal machine, 14 ... Cutting head, 16 ... Contact plate, 18 ... Cutter, 26A, 26B ... Guide roll, 28 ... Brake device, 37... Pulling head, 39... Clamp, 40... Operating rod, 50... Adsorption device, 51... Swivel arm.

Claims (1)

[Claims] 1. A roller conveyor that horizontally transports pulp bales made by wrapping sheet-like pulp accumulated in the vertical direction with wrapping paper from the upper and lower sides and binding them tightly with wires wound in the vertical direction. , a wire cutting machine installed on one side of the roller conveyor for cutting the wire; and a wire cutting machine installed at a position facing the wire cutting machine across the roller conveyor, gripping the wire and directing it outward from the roller conveyor. In the past, in a pulp unpacking machine equipped with a horizontally moving wire removing machine, the wire removing machine included a guide frame that was movable in a direction parallel to the conveying direction of a roller conveyor and whose movement in the vertical direction was restricted, and and a pull-out head supported movably both in the moving direction of the guide frame and in a horizontal direction orthogonal to the guide frame, and the guide frame has a structure in which the pulp bale and the pull-out head are connected to each other. A pulp unpacking device characterized by being provided with guide rolls for winding a wire between the guide rolls and changing the direction of the wire substantially horizontally.